Cross-contamination is acompound modifier which is defined as two words connected by a hyphen, which forms a single adjective. Because when the words stand on their own have different meanings, the hyphen is used to form one word with a single definition. "Cross" can be used as a verb, noun, or as an adjective. Therefore, a hyphen is used in cross-contamination to clarify its meaning.
Historically a hyphen was used. In modern times 'cross training' is now presented as two words.
I couldn't find a specific cross-stitch category - however - see the related link to the Arts & Crafts section - I think cross-stitch questions could be posted somewhere in there. You can always request for the category to be created if you feel it needs to be.
You say "A hyphen" because the sound of the letter "H" at the beginning of the word "hyphen" is pronounced, making it a consonant sound.
No, it does not have a hyphen.
It Is A Special Hyphen
A colon is this : and a hyphen is this -
multimedia - NO hyphen
hyphen
No there's not a hyphen.
It does not need to have a hyphen! :)
Non-breaking hyphen